Electron pair Beverage cup structure for NH3 is depicted by the outer electrons surrounding the N atom. The dot point structure for ammonia exhibits that the nitrogen atom connects a solitary pair of electrons with each of the three hydrogen atoms, resulting in a total of three shared pairs of electrons. The NH3 molecule takes a three-sided pyramid-like shape because of the distribution of the valence electrons according to its Lewis Beverage cup arrangement. In the dot symbol representation of ammonia, the N atom is surrounded by three points, each representing a pair of connected electrons with a hydrogen atom.